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common.go
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common.go
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// Copyright 2022 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package framework
import (
"github.com/pingcap/log"
"github.com/pingcap/tiflow/engine/framework/internal/master"
frameModel "github.com/pingcap/tiflow/engine/framework/model"
engineModel "github.com/pingcap/tiflow/engine/model"
"go.uber.org/zap"
)
type (
// WorkerType alias to model.WorkerType
WorkerType = frameModel.WorkerType
// WorkerConfig stores worker config in any type
WorkerConfig = interface{}
// WorkerHandle alias to master.WorkerHandle
WorkerHandle = master.WorkerHandle
// MockHandle is a mock for WorkerHandle.
// Re-exported for testing.
MockHandle = master.MockHandle
// MasterFailoverReasonCode is used as reason code
MasterFailoverReasonCode int32
)
// Defines all reason codes
const (
MasterTimedOut = MasterFailoverReasonCode(iota + 1)
MasterReportedError
)
// MasterFailoverReason contains failover reason code and error message
type MasterFailoverReason struct {
Code MasterFailoverReasonCode
ErrorMsg string
}
// MustConvertWorkerType2JobType return the job type of worker type. Panic if it fail.
// TODO: let user register a unique identifier for the metric prefix
func MustConvertWorkerType2JobType(tp WorkerType) engineModel.JobType {
switch tp {
case frameModel.JobManager:
// jobmanager is the framework level job
return engineModel.JobTypeJobManager
case frameModel.CvsJobMaster, frameModel.CvsTask:
return engineModel.JobTypeCVSDemo
case frameModel.FakeJobMaster, frameModel.FakeTask:
return engineModel.JobTypeFakeJob
case frameModel.DMJobMaster, frameModel.DmTask, frameModel.WorkerDMDump, frameModel.WorkerDMLoad, frameModel.WorkerDMSync:
return engineModel.JobTypeDM
case frameModel.CdcJobMaster, frameModel.CdcTask:
return engineModel.JobTypeCDC
}
log.Panic("unexpected fail when convert worker type to job type", zap.Stringer("worker_type", tp))
return engineModel.JobTypeInvalid
}
// ExitReason is the type for exit reason
type ExitReason int
// define some ExitReason
const (
ExitReasonUnknown = ExitReason(iota)
ExitReasonFinished
ExitReasonCanceled
ExitReasonFailed
)
// WorkerStateToExitReason translates WorkerState to ExitReason
// TODO: business logic should not sense 'WorkerState'
func WorkerStateToExitReason(code frameModel.WorkerState) ExitReason {
switch code {
case frameModel.WorkerStateFinished:
return ExitReasonFinished
case frameModel.WorkerStateStopped:
return ExitReasonCanceled
case frameModel.WorkerStateError:
return ExitReasonFailed
}
return ExitReasonUnknown
}